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Finding the Fourth Proportional to 2,505.95, 3,458.19 and 1,401.95

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Solution

The fourth proportional to 2,505.95, 3,458.19 and 1,401.95 is: 1,934.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,505.95 : 3,458.19 = 1,401.95 : x
  2. Step 2: Convert to fraction form
    2,505.95/3,458.19 = 1,401.95/x
  3. Step 3: Cross multiply
    2,505.95x = 3,458.19 × 1,401.95
  4. Step 4: Simplify right side
    2,505.95x = 4,848,192.18
  5. Step 5: Solve for x
    x = 4,848,192.18/2,505.95
  6. Step 6: Final answer
    x = 1,934.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.